only export GCC_HONOUR_COPTS for the built-in toolchain, fixes missing-fhonour-copts...
[openwrt/staging/wigyori.git] / include / kernel.mk
1 #
2 # Copyright (C) 2006 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7
8 ifeq ($(__target_inc),)
9 include $(INCLUDE_DIR)/target.mk
10 endif
11
12 ifeq ($(DUMP),1)
13 KERNEL?=<KERNEL>
14 BOARD?=<BOARD>
15 LINUX_VERSION?=<LINUX_VERSION>
16 else
17 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
18 export GCC_HONOUR_COPTS=s
19 endif
20
21 LINUX_KMOD_SUFFIX=ko
22
23 ifneq (,$(findstring uml,$(BOARD)))
24 KERNEL_CC?=$(HOSTCC)
25 KERNEL_CROSS?=
26 else
27 KERNEL_CC?=$(TARGET_CC)
28 KERNEL_CROSS?=$(TARGET_CROSS)
29 endif
30
31 ifeq ($(TARGET_BUILD),1)
32 PATCH_DIR ?= ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
33 FILES_DIR ?= $(foreach dir,$(wildcard ./files ./files-$(KERNEL_PATCHVER)),"$(dir)")
34 endif
35 KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
36 LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
37
38 LINUX_UNAME_VERSION:=$(if $(word 3,$(subst ., ,$(KERNEL_BASE))),$(KERNEL_BASE),$(KERNEL_BASE).0)
39 ifneq ($(findstring -rc,$(LINUX_VERSION)),)
40 LINUX_UNAME_VERSION:=$(LINUX_UNAME_VERSION)-$(strip $(lastword $(subst -, ,$(LINUX_VERSION))))
41 endif
42
43 MODULES_SUBDIR:=lib/modules/$(LINUX_UNAME_VERSION)
44 TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
45
46 LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
47
48 LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
49 TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
50 ifeq ($(call qstrip,$(CONFIG_EXTERNAL_KERNEL_TREE)),)
51 LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING)
52 endif
53
54 ifneq ($(TARGET_BUILD),1)
55 PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
56 endif
57 endif
58
59 ifneq (,$(findstring uml,$(BOARD)))
60 LINUX_KARCH=um
61 else
62 ifeq (,$(LINUX_KARCH))
63 LINUX_KARCH=$(strip $(subst i386,x86,$(subst armeb,arm,$(subst mipsel,mips,$(subst mips64,mips,$(subst mips64el,mips,$(subst sh2,sh,$(subst sh3,sh,$(subst sh4,sh,$(ARCH))))))))))
64 endif
65 endif
66
67
68 define KernelPackage/Defaults
69 FILES:=
70 AUTOLOAD:=
71 endef
72
73 define ModuleAutoLoad
74 $(SH_FUNC) \
75 export modules=; \
76 add_module() { \
77 priority="$$$$$$$$1"; \
78 mods="$$$$$$$$2"; \
79 boot="$$$$$$$$3"; \
80 shift 3; \
81 mkdir -p $(2)/etc/modules.d; \
82 ( \
83 [ "$$$$$$$$boot" = "1" ] && { \
84 echo '# May be required for rootfs' ; \
85 } ; \
86 for mod in $$$$$$$$mods; do \
87 echo "$$$$$$$$mod"; \
88 done \
89 ) > $(2)/etc/modules.d/$$$$$$$$priority-$(1); \
90 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$priority-$(1)"; \
91 }; \
92 $(3) \
93 if [ -n "$$$$$$$$modules" ]; then \
94 mkdir -p $(2)/etc/modules.d; \
95 mkdir -p $(2)/CONTROL; \
96 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
97 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
98 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
99 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
100 chmod 0755 $(2)/CONTROL/postinst; \
101 fi
102 endef
103
104 ifeq ($(DUMP)$(TARGET_BUILD),)
105 -include $(LINUX_DIR)/.config
106 endif
107
108 define KernelPackage/depends
109 $(STAMP_BUILT): $(LINUX_DIR)/.config
110 define KernelPackage/depends
111 endef
112 endef
113
114 define KernelPackage
115 NAME:=$(1)
116 $(eval $(call Package/Default))
117 $(eval $(call KernelPackage/Defaults))
118 $(eval $(call KernelPackage/$(1)))
119 $(eval $(call KernelPackage/$(1)/$(BOARD)))
120
121 define Package/kmod-$(1)
122 TITLE:=$(TITLE)
123 SECTION:=kernel
124 CATEGORY:=Kernel modules
125 DESCRIPTION:=$(DESCRIPTION)
126 EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(LINUX_RELEASE))
127 VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
128 $(call KernelPackage/$(1))
129 $(call KernelPackage/$(1)/$(BOARD))
130 endef
131
132 ifdef KernelPackage/$(1)/description
133 define Package/kmod-$(1)/description
134 $(call KernelPackage/$(1)/description)
135 endef
136 endif
137
138 ifdef KernelPackage/$(1)/config
139 define Package/kmod-$(1)/config
140 $(call KernelPackage/$(1)/config)
141 endef
142 endif
143
144 $(call KernelPackage/depends)
145
146 ifneq ($(if $(filter-out %=y %=n %=m,$(KCONFIG)),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
147 ifneq ($(strip $(FILES)),)
148 define Package/kmod-$(1)/install
149 mkdir -p $$(1)/$(MODULES_SUBDIR)
150 $(CP) -L $$(FILES) $$(1)/$(MODULES_SUBDIR)/
151 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
152 $(call KernelPackage/$(1)/install,$$(1))
153 endef
154 endif
155 $(if $(CONFIG_PACKAGE_kmod-$(1)),
156 else
157 compile: kmod-$(1)-unavailable
158 kmod-$(1)-unavailable:
159 @echo "WARNING: kmod-$(1) is not available in the kernel config"
160 )
161 endif
162 $$(eval $$(call BuildPackage,kmod-$(1)))
163
164 $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
165 endef
166
167 define AutoLoad
168 add_module "$(1)" "$(2)" "$(3)";
169 endef
170
171 version_field=$(if $(word $(1),$(2)),$(word $(1),$(2)),0)
172 kernel_version_merge=$$(( ($(call version_field,1,$(1)) << 24) + ($(call version_field,2,$(1)) << 16) + ($(call version_field,3,$(1)) << 8) + $(call version_field,4,$(1)) ))
173
174 ifdef DUMP
175 kernel_version_cmp=
176 else
177 kernel_version_cmp=$(shell [ $(call kernel_version_merge,$(call split_version,$(2))) $(1) $(call kernel_version_merge,$(call split_version,$(3))) ] && echo 1 )
178 endif
179
180 CompareKernelPatchVer=$(if $(call kernel_version_cmp,-$(2),$(1),$(3)),1,0)
181
182 kernel_patchver_gt=$(call kernel_version_cmp,-gt,$(KERNEL_PATCHVER),$(1))
183 kernel_patchver_ge=$(call kernel_version_cmp,-ge,$(KERNEL_PATCHVER),$(1))
184 kernel_patchver_eq=$(call kernel_version_cmp,-eq,$(KERNEL_PATCHVER),$(1))
185 kernel_patchver_le=$(call kernel_version_cmp,-lt,$(KERNEL_PATCHVER),$(1))
186 kernel_patchver_lt=$(call kernel_version_cmp,-le,$(KERNEL_PATCHVER),$(1))
187